diff --git a/README.md b/README.md
index 4a2d1b3..21eb72a 100644
--- a/README.md
+++ b/README.md
@@ -483,6 +483,7 @@ You can read more about this distinction on Prof. Daniel Abadi's blog: [Distingu
 * [LinkedIn Cleo](https://github.com/linkedin/cleo) - is a flexible software library for enabling rapid development of partial, out-of-order and real-time typeahead search.
 * [LinkedIn Galene](http://engineering.linkedin.com/search/did-you-mean-galene) - search architecture at LinkedIn.
 * [LinkedIn Zoie](https://github.com/senseidb/zoie) - is a realtime search/indexing system written in Java.
+* [MG4J](http://mg4j.di.unimi.it/) - MG4J (Managing Gigabytes for Java) is a full-text search engine for large document collections written in Java. It is highly customisable, high-performance and provides state-of-the-art features and new research algorithms.
 * [Sphinx Search Server](http://sphinxsearch.com/) - fulltext search engine.
 
 ## MySQL forks and evolutions